Revelation 12:11
"And they have conquered him by the blood of the Lamb and by the word of their testimony, for they loved not their lives even unto death." (ESV)
Testimony
Evidence or proof provided by the existence or appearance of something
"And they have conquered him by the blood of the Lamb and by the word of their testimony, for they loved not their lives even unto death." (ESV)
Evidence or proof provided by the existence or appearance of something